CN106601567A - Outdoor all-insulation enclosed-type injection fuse - Google Patents
Outdoor all-insulation enclosed-type injection fuse Download PDFInfo
- Publication number
- CN106601567A CN106601567A CN201611163653.7A CN201611163653A CN106601567A CN 106601567 A CN106601567 A CN 106601567A CN 201611163653 A CN201611163653 A CN 201611163653A CN 106601567 A CN106601567 A CN 106601567A
- Authority
- CN
- China
- Prior art keywords
- outdoor
- sleeve
- insulation
- insulator
- conducting block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H85/205—Electric connections to contacts on the base
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- Fuses (AREA)
Abstract
The invention discloses an outdoor all-insulation enclosed-type injection fuse. The fuse comprises a porcelain sleeve, an upper contact seat and a lower contact seat. An insulation sleeve is slidingly connected into the porcelain sleeve up and down. An upper end surface of the insulation sleeve is provided with a sliding groove which is extended axially and whose cross section is a polygon. A conducting block is connected into the sliding groove in an adaptive sliding mode. An upper end of the conducting block is integrally connected to a screw. The upper contact seat is provided with a screw hole, wherein the screw and the conducting block enter into the screw hole. A fusion tube is slidingly connected into the insulation sleeve up and down. A spring which is used to press the fusion tube downwardly is arranged in the insulation sleeve. A lower side of the fusion tube is fixedly connected to a moving contact. The moving contact is fixedly connected to a fusion body. The other end of the fusion body passes through the insulation sleeve upwardly and is fixedly connected to the conducting block. A lower side of the insulation sleeve is fixedly connected to a conductive cover. The conductive cover abuts against an inner wall of the lower contact seat. The moving contact is slidingly connected to an inner wall of the conductive cover. The fuse possesses characteristics of high insulation, a high weather resistance ability, a long service life and the like and can operate stably under a severe environment so that an effective guarantee is provided for line safety.
Description
Technical field
The present invention relates to a kind of high-tension fuse, more specifically it is related to a kind of outdoor all insulation enclosed type injecting type and melts
Disconnected device.
Background technology
With high-voltage product technology be showing improvement or progress day by day and electrical network transmission line to its matching used product requirement gradually
Improve, the fuse switch for circulating on the market today can not meet the requirement of electrical network transmission ＆ distribution, and become electrical network
A weak spot on transmission line, the opening Design at existing fuse switch tie point and dynamic/static contact, wire
Junction and upper and lower side dynamic/static contact are all exposed to the open air in the middle of natural environment so as to cannot equally accomplish all insulation with all fronts, in city
In the insulated circuit of net, the fault rate occurred at fuse switch is highest, is a very big potential safety hazard point, and because
Its tie point and dynamic/static contact is all exposed in the middle of natural environment, so the weatherability of parts is poor, easily receives environment shadow
Ring, so as to affect the service life of parts, fault rate is high.
At present, Authorization Notice No. discloses a kind of outdoor complete for the Chinese patent document of CN20343138U in prior art
Isolation enclosed type jet fuse, including insulator, the middle part of insulator has hollow tube, load is provided with hollow tube and holds part, its
It is characterised by, carries appearance part and be connected with inlet line and egress line by upper and lower electrode respectively, around the wire of inlet line and egress line
Integrally formed electro-insulating rubber is enclosed with, electro-insulating rubber is combined closely with insulator.
The operation principle of above-mentioned outdoor all insulation enclosed type expulsion fuse is to form electric arc using melt itself fusing,
Then under high arc temperature effect, the special material gasification in arc-extinguishing tube is produced into a large amount of gases, then by this gas in electric current
Electric arc is blown out during zero passage, and fusion tube movable part is released outside fuse by spring effect, form electric fracture,
To cut-off circuit.Reach above-mentioned functions needs to tense fusion tube, and while compression by melt in the fuse assembling process
Spring carries out energy storage.It is existing problem be, when melt is tensed, melt to be anchored simultaneously, and due to by spring
The reset response of potential energy, the operation is more stranded difficult and laborious, is not easy to quick assembling.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of outdoor all insulation enclosed type injecting type
Fuse, when melt is tensed, can carry out energy storage and fixed melt so that the assembling of the fuse is more convenient to be saved to spring simultaneously
Power.
For achieving the above object, the invention provides following technical scheme：A kind of outdoor all insulation enclosed type injecting type melts
Disconnected device, including insulator, the insulator upper end is provided with junction block, and insulator downside side wall is provided with lower junction block；The upper junction block
Including the upper touch base for being arranged on insulator inwall upper end；Lower junction block includes being arranged on insulator inwall downside lower touch base annular in shape；
Upper and lower sliding in the insulator is connected with insulating sleeve, and the upper surface of insulating sleeve is provided with axially extending and cross section for polygon
Slippage slot, in the slippage slot be adapted to sliding be connected with conducting block；The conducting block upper end is connected with screw rod, it is described on
Touch base is provided with the screw entered for screw rod and conducting block；Upper and lower sliding in the insulating sleeve is connected with fusion tube；The insulation
The spring for downwards pushing up fusion tube is provided with sleeve；Slider is fixedly connected with the downside of the fusion tube, it is fixed on slider
Melt is connected with, the melt other end is upward through insulating sleeve and is fixedly connected with conducting block；The downside of the insulating sleeve is fixed
Conductive sleeve is connected with, conductive sleeve supports the inwall for being affixed on lower touch base；The slider is slidably connected to the inwall of conductive sleeve.
Traditional manual is abandoned and has tensed the installation side that melt is anchored again by adopting above-mentioned technical proposal, the present invention
Formula；When mounted, insulating sleeve, conductive sleeve, fusion tube, slider, conducting block and melt can be pre-assembled to the present invention
The core of integral tubular；The core body is inserted from the lower openings of insulator, and through lower touch base so that in conductive sleeve part
Lining sliding is fitted in lower touch base and all the time with the conflict of lower touch base；When screw rod is contradicted with the screw of upper touch base, conductive sleeve is rotated, and
Upper pressure；So that screw rod is moved in screw；Until insulating sleeve upper surface contradicts with upper touch base, conductive sleeve is persistently rotated so that
Insulating sleeve is persistently rotated；Now because insulating sleeve cannot be pushed up；And screw rod is by the transmission of conducting block and slippage slot
Effect, still can be rotated, and be continued in screw during movement in screw rod, and conducting block draws melt and fusion tube
Tightly；Melt upper end is electrically connected by conducting block, screw rod with upper touch base, lower end is contacted with conductive sleeve by slider and realized with
Touch base is electrically connected；So as to complete assembling.
During being somebody's turn to do, melt is realized tensing and fixed by screw rod and the connection of screw, and the potential energy of spring is no longer acted on
The hand of assembler；Install more laborsaving；During assembling, directly upper pressure in above-mentioned integrally-built core body insertion insulator is rotated
, quick tension can be carried out to melt and is assembled；It is easy to assembly.
The present invention is further arranged to：Connection sheet is fixed with the downside of the lower touch base, the connection sheet is provided with spiral shell
Pit, the side wall of the conductive sleeve is provided with the cambered outwards connecting portion in footpath, is connected by screw between the connecting portion and connection sheet.
By adopting above-mentioned technical proposal, when melt is strained and fixed, conductive sleeve can be fixed on by lower touch base by screw
Connection sheet on, increase the electrical contact of conductive sleeve and lower touch base, while being also that conductive sleeve and insulating sleeve provide fixation.
The present invention is further arranged to：The spacing edge for extending radially inwardly, institute are provided with the lower ending opening of the conductive sleeve
The outer wall for stating slider is provided with spacing along the defining flange for forming conflict.
By adopting above-mentioned technical proposal, when melt fuses, by barrier effect of the spacing edge to defining flange so that
Fusion tube and slider will not completely disengage from conductive sleeve, using safer.
The present invention is further arranged to：Also include being located at the dust cap at insulator lower ending opening, dust cap is connected by lanyard
It is connected to insulator.
By adopting above-mentioned technical proposal, when melt fuses, fusion tube and slider are subject to the downward bullet of spring effect
Go out, dust cap can be ejected the opening of insulator；The dust cap being ejected is hung on insulator by lanyard, by observing dust cap
State can be visually known the working condition of fuse.
The present invention is further arranged to：The outer wall of the slider is provided with the elastic bumps contradicted with conductive sleeve inwall.
Can play a part of to strengthen slider with conductive sleeve electrical contact by adopting above-mentioned technical proposal, elastic bumps.
The present invention is further arranged to：The elastic bumps are the arc spring lamination for being welded in slider outer wall.
Welded with slider by adopting above-mentioned technical proposal, arc spring lamination so that slider is sliding in conductive sleeve
During shifting, can effectively be fixed.
The present invention is further arranged to：The elastic bumps include being radially disposed at the groove of slider, sliding in groove
It is dynamic to be connected with conductive pin, the compression spring for conductive pin outwards to be ejected is provided with groove.
It is partially disposed in groove by adopting above-mentioned technical proposal, conductive pin, can be had in slider sliding
The fixation of effect；Acted on by the ejection of compression spring so that conductive pin can keep stably being contacted with conductive sleeve inwall.
The present invention is further arranged to：The lower touch base is Mume flower contact.
By adopting above-mentioned technical proposal, Mume flower contact has the function of radially-inwardly drawing in, so as to can with conductive sleeve outside
Wall is in close contact, and improves the stability of electrical connection.
The present invention is further arranged to：The upper junction block and lower junction block include line outlet and binding post, go out
Electro-insulating rubber is enclosed with line mouth.
Upper and lower line outlet can all be closed by adopting above-mentioned technical proposal, electro-insulating rubber so that fuse is integrally in envelope
Closed form structure, effectively increases weatherability；Can be better adapted to be used under adverse circumstances.
The present invention is further arranged to：The conducting block and slippage slot are the hexagonal structure being adapted.
It is adapted with slippage slot by adopting above-mentioned technical proposal, conductive sleeve, and for hexagonal structure so that insulating sleeve
During rotation, conducting block can be simultaneously driven to rotate.
In sum, this invention simplifies the retightening operation of melt and fusion tube, drives conducting block to move into spiral shell by screw rod
Hole, tenses while melt causes spring energy-storage and also melt is fixed so that the fuse assembling is more convenient laborsaving.
Description of the drawings
Fig. 1 is the structural representation when melt of embodiment one is not tensed；
Fig. 2 is the structural representation after the melt of embodiment one is tensed；
Fig. 3 is the connection diagram of conducting block and screw rod in embodiment one；
Fig. 4 is the schematic diagram of the saliency arc spring lamination of embodiment two and slider annexation.
Description of reference numerals：1st, insulator；2nd, line outlet；3rd, electro-insulating rubber；4th, upper touch base；5th, lower touch base；6th, binding post；
7th, dust cap；8th, insulating sleeve；9th, slippage slot；10th, conducting block；11st, screw rod；12nd, screw；13rd, melt；14th, fusion tube；15th, bullet
Spring；16th, slider；17th, conductive sleeve；18th, spacing edge；19th, defining flange；20th, groove；21st, conductive pin；22nd, compression spring；
23rd, connection sheet；24th, connecting portion；25th, screw；26th, arc spring lamination.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Embodiment one, a kind of outdoor all insulation enclosed type expulsion fuse, as shown in figure 1, including the porcelain for pagoda shape
Set 1, the bottom of insulator 1 is opening, and opening is connected with dust cap 7, and dust cap 7 is connected by lanyard with insulator 1；The upper end of insulator 1
And downside side wall is equipped with line outlet 2, the lower section of upper end line outlet 2 is sealed with touch base 4, the fixed company in the inner side of downside line outlet 2
It is connected to lower touch base 5；Upper touch base 4 and lower touch base 5 are respectively connected with the binding post 6 for extending line outlet 2, by exhausted at line outlet 2
Edge rubber 3 is wrapped up, and binding post 6 is exposed.
As shown in figure 1, the lower surface of upper touch base 4 is provided with screw 12, insulator 1 slidably connects insulating sleeve 8, insulation sleeve
The upper surface of cylinder 8 is provided with center and is provided with axially extending slippage slot 9, and the cross section of slippage slot 9 is preferably but not limited to six sides
Shape structure, or the polygonized structure such as quadrangle, pentagon；The conducting block being adapted to it is slidably connected in slippage slot 9
10；As shown in figure 3, the upper end of conducting block 10 is connected with screw rod 11 of the external diameter more than conducting block 10, conducting block 10 and screw rod
11 are red copper material；As shown in figure 1, the lower surface of lower touch base 5 is provided with the screw 12 being adapted to screw rod 11, the depth of screw 12
Screw rod 11 and conducting block 10 can be accommodated.
As shown in figure 1, sliding is connected with fusion tube 14 in insulating sleeve 8, the inner upper end of insulating sleeve 8 is lined with spring 15,
Spring 15 produces downward thrust along conflict with contradicting for the upper end of fusion tube 14 to fusion tube 14.
As shown in figure 1, the lower end of fusion tube 14 is threaded with the slider 16 of red copper material, the external diameter of slider 16
It is identical with the external diameter of fusion tube 14；Melt 13 is provided with fusion tube 14, melt 13 includes the braiding copper cash at two ends and the fusing at middle part
Portion（It is not specifically illustrated in figure）；The upper end of melt 13 passes insulating sleeve 8 and is welded and fixed with conducting block 10, the lower end of melt 13 with slide
Contact 16 is welded and fixed.
As shown in figure 1, the lower end of insulating sleeve 8 is fixedly connected with conductive sleeve 17, this be fixedly connected can be clamping, bonding,
Interference connects.Lower touch base 5 is ring-type, preferably Mume flower contact, and the outer wall of conductive sleeve 17 supports the inwall for being affixed on lower touch base 5.
As shown in Fig. 2 being provided with spacing along 18, the side of slider 16 for extending radially inwardly at the lower ending opening of conductive sleeve 17
Wall is provided with defining flange 19, and defining flange 19 is slidably connected in conductive sleeve 17, and forms conflict relation along 18 with spacing.Slide
The side wall of contact 16 is provided with groove 20, and conductive pin 21 is slidably connected in groove 20, is provided with that conductive pin 21 is outside in groove 20
The compression spring 22 of ejection, compressed spring 22 is acted on, and the outer end of conductive pin 21 contradicts all the time with the inwall of conductive sleeve 17.
As shown in Fig. 2 the lower end of lower touch base 5 is fixedly connected with connection sheet 23, the downside side wall of conductive sleeve 17 is provided with outwards
The connecting portion 24 of projection, connecting portion 24 can be connected by screw 25 with connection sheet 23.
The assembling process of the present embodiment is as follows；With reference to Fig. 1, Fig. 2；First insulating sleeve 8, spring 15, fusion tube 14, slip are touched
16, melt 13, conducting block 10, conductive sleeve 17 are assembled into integral tubular core；The core body is opened from the bottom of insulator 1 again
Mouth insertion so that conductive sleeve 17 supports patch with lower touch base 5；Screw rod 11 is near screw 12（With reference to Fig. 1）；
When screw rod 11 and screw 12 are contradicted, conductive sleeve 17 is rotated so that insulating sleeve 8, the synchronous axial system of screw rod 11, screw rod 11 enters
Enter screw 12, continue upper pressure and rotate conductive sleeve 17, until the upper surface of insulating sleeve 8 contacts at touch base 4, insulating sleeve 8 cannot
Move in continuation；When conductive sleeve 17 is rotated further, conducting block 10 is hauled out slippage slot 9 and enters screw 12 by screw rod 11；The process
In, conducting block 10 is pulled up slider 16 and fusion tube 14 by melt 13, the pressuring spring 15 of fusion tube 14 so that spring 15 is stored up
Can finish；When conducting block 10 departs from slippage slot 9, realizing carries out energy storage to spring 15 and melt 13 is strained and fixed
（With reference to Fig. 2）.
Again connecting portion 24 and connection sheet 23 are connected by screw 25 and conductive sleeve 17 and insulating sleeve 8 are fixed；
Dust cap 7 is finally covered, assembling is completed.
Embodiment two, as shown in figure 4, be with the difference of embodiment one, by conductive pin 21, compression spring 22, groove 20
The elastic bumps structure of composition replaces with arc spring lamination 26；The one end of arc spring lamination 26 is fixedly welded on slider 16.
Presently preferred embodiments of the present invention is the foregoing is only, the present invention, all design structures in the present invention is not limited to
Within think of, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of outdoor all insulation enclosed type expulsion fuse, including insulator（1）, the insulator（1）Upper end is provided with wiring
Seat, insulator（1）Downside side wall is provided with lower junction block；It is characterized in that：The upper junction block includes being arranged on insulator（1）On inwall
The upper touch base at end（4）；Lower junction block includes being arranged on insulator（1）Inwall downside lower touch base annular in shape（5）；The insulator（1）
Interior upper and lower sliding is connected with insulating sleeve（8）, insulating sleeve（8）Upper surface be provided with axially extending and cross section for polygonal
Slippage slot（9）, the slippage slot（9）The sliding of middle adaptation is connected with conducting block（10）；The conducting block（10）Upper end integrally connected
There is screw rod（11）, the upper touch base（4）It is provided with and supplies screw rod（11）And conducting block（10）Into screw（12）；The insulation sleeve
Cylinder（8）Interior upper and lower sliding is connected with fusion tube（14）；The insulating sleeve（8）Inside it is provided with fusion tube（14）The spring for pushing up downwards
（15）；The fusion tube（14）Downside be fixedly connected with slider（16）, slider（16）On be fixedly connected with melt
（13）, melt（13）The other end is upward through insulating sleeve（8）With conducting block（10）It is fixedly connected；The insulating sleeve（8）'s
Downside is fixedly connected with conductive sleeve（17）, conductive sleeve（17）To being affixed on lower touch base（5）Inwall；The slider（16）Slide
It is connected to conductive sleeve（17）Inwall.
2. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 1, it is characterised in that：It is described lower tactile
Seat（5）Downside be fixed with connection sheet（23）, the connection sheet（23）It is provided with screwed hole, the conductive sleeve（17）Side wall
It is provided with the cambered outwards connecting portion in footpath（24）, the connecting portion（24）With connection sheet（23）Between pass through screw（25）Connection.
3. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 2, it is characterised in that：The conduction
Set（17）Lower ending opening at be provided with the spacing edge for extending radially inwardly（18）, the slider（16）Outer wall be provided with and limit
Position edge（18）Form the defining flange for contradicting（19）.
4. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 3, it is characterised in that：Also include position
In insulator（1）Dust cap at lower ending opening（7）, dust cap（7）Insulator is connected to by lanyard（1）.
5. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 1, it is characterised in that：The slip
Contact（16）Outer wall be provided with and conductive sleeve（17）The elastic bumps that inwall is contradicted.
6. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 5, it is characterised in that：The elasticity
Projection is to be welded in slider（16）The arc spring lamination of outer wall（26）.
7. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 5, it is characterised in that：The elasticity
Projection includes being radially disposed at slider（16）Groove（20）, groove（20）In slidably connect conductive pin（21）, groove
（20）Inside it is provided with for by conductive pin（21）The compression spring for outwards ejecting（22）.
8. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 1, it is characterised in that：It is described lower tactile
Seat（5）For Mume flower contact.
9. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 1, it is characterised in that：Connect on described
Line seat and lower junction block include line outlet（2）And binding post（6）, line outlet（2）Place is enclosed with electro-insulating rubber（3）.
10. a kind of outdoor all insulation enclosed type expulsion fuse according to claim 1, it is characterised in that：It is described to lead
Electric block（10）And slippage slot（9）For the hexagonal structure being adapted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163653.7A CN106601567B (en) | 2016-12-15 | 2016-12-15 | A kind of open air all insulation enclosed type expulsion fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611163653.7A CN106601567B (en) | 2016-12-15 | 2016-12-15 | A kind of open air all insulation enclosed type expulsion fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106601567A true CN106601567A (en) | 2017-04-26 |
| CN106601567B CN106601567B (en) | 2018-07-27 |
Family
ID=58802821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611163653.7A Active CN106601567B (en) | 2016-12-15 | 2016-12-15 | A kind of open air all insulation enclosed type expulsion fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106601567B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316790A (en) * | 2017-07-26 | 2017-11-03 | 河南平开科技有限公司 | A kind of fusing injection structure of the injection fuse box with anti-slow separating device |
| CN107359095A (en) * | 2017-07-26 | 2017-11-17 | 河南平开科技有限公司 | A kind of fusing injection structure being used in outdoor closed injection fuse box |
| CN109841465A (en) * | 2017-11-24 | 2019-06-04 | 库柏电子科技(上海)有限公司 | Outdoor closed fuse |
| CN114284118A (en) * | 2021-12-28 | 2022-04-05 | 徐州汉通电子科技有限公司 | Fuse for power distribution system |
Citations (5)
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| US1304236A (en) * | 1919-05-20 | wordingham | ||
| CN200993946Y (en) * | 2006-12-28 | 2007-12-19 | 王芹 | Falling-down fuse |
| CN201112314Y (en) * | 2007-05-09 | 2008-09-10 | 日本能源服务株式会社 | High voltage fuse |
| CN201966163U (en) * | 2011-01-24 | 2011-09-07 | 南京紫洋电力设备有限公司 | Outdoor alternating current isolation enclosed type jet fuse |
| CN102509677A (en) * | 2011-11-08 | 2012-06-20 | 武汉雷泰电力新技术有限公司 | All-insulated outdoor ejection type fuse |
-
2016
- 2016-12-15 CN CN201611163653.7A patent/CN106601567B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1304236A (en) * | 1919-05-20 | wordingham | ||
| CN200993946Y (en) * | 2006-12-28 | 2007-12-19 | 王芹 | Falling-down fuse |
| CN201112314Y (en) * | 2007-05-09 | 2008-09-10 | 日本能源服务株式会社 | High voltage fuse |
| CN201966163U (en) * | 2011-01-24 | 2011-09-07 | 南京紫洋电力设备有限公司 | Outdoor alternating current isolation enclosed type jet fuse |
| CN102509677A (en) * | 2011-11-08 | 2012-06-20 | 武汉雷泰电力新技术有限公司 | All-insulated outdoor ejection type fuse |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107316790A (en) * | 2017-07-26 | 2017-11-03 | 河南平开科技有限公司 | A kind of fusing injection structure of the injection fuse box with anti-slow separating device |
| CN107359095A (en) * | 2017-07-26 | 2017-11-17 | 河南平开科技有限公司 | A kind of fusing injection structure being used in outdoor closed injection fuse box |
| CN107316790B (en) * | 2017-07-26 | 2019-10-25 | 河南平开科技有限公司 | It is a kind of with preventing the injection fuse box of slow separating device fusing injection structure |
| CN109841465A (en) * | 2017-11-24 | 2019-06-04 | 库柏电子科技(上海)有限公司 | Outdoor closed fuse |
| CN109841465B (en) * | 2017-11-24 | 2022-06-17 | 库柏电子科技(上海)有限公司 | Outdoor closed fuse |
| CN114284118A (en) * | 2021-12-28 | 2022-04-05 | 徐州汉通电子科技有限公司 | Fuse for power distribution system |
| CN114284118B (en) * | 2021-12-28 | 2022-10-04 | 徐州汉通电子科技有限公司 | Fuse for power distribution system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106601567B (en) | 2018-07-27 |
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Denomination of invention: An outdoor fully insulated closed jet fuse Effective date of registration: 20230113 Granted publication date: 20180727 Pledgee: Zhejiang Tailong Commercial Bank Co.,Ltd. Wenzhou Leqing Sub branch Pledgor: ZHEJIANG RUWGA ELECTRIC POWER TECHNOLOGY CO.,LTD. Registration number: Y2023330000143 |